Table 1.
Limits of detection for pXRF (DELTA Premium, DP-6000) and ICP-MS (ppm/µg g−1). The ICP-MS methodological limit of detection (MDL) for each element was calculated based on the instrument detection limit after applying the dilution factor.
| pXRF * | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Element | As | Ni | Ca | Cu | Cr | Ba | Fe | K | Pb | Mn | Zn |
| LOD | 1–3 | 4–10 | 10–35 | 2–6 | 2–9 | 15–30 | 5–20 | 20–50 | 1–4 | 3–7 | 1–3 |
| ICP-MS | |||||||||||
| Element | As | Ni | Ca | Cu | Cr | Ba | Fe | K | Pb | Mn | Zn |
| MDL | 0.027 | 0.067 | 1.140 | 0.030 | 0.021 | 0.002 | 0.034 | 4.206 | 0.004 | 0.006 | 0.023 |
*
Limit of detections for soils and the geochemical modes (Olympus Corporation, n.d.c).